Prompt Optimizer — Privacy statement
Airport51 Inc

Last updated: 2026-08-29

HOW OPTIMIZATION WORKS
The app always creates a deterministic local result in your browser first. If
Airport51's guarded AI refinement is available, the rough prompt, your selected
settings and that local draft are sent over HTTPS to Airport51's WordPress
server. The server forwards them to Anthropic using a server-side API key. The
API key is never sent to your browser.

If the AI service is unavailable or the request limit is reached, the local
result stays available. The installed app shell and local optimizer also keep
working offline; AI refinement requires an internet connection.

WHAT IS SENT FOR AI REFINEMENT
- the prompt you enter
- target AI, tone and desired answer length
- the two visible option toggles
- the deterministic local draft

Do not enter secrets, passwords, medical records or other information you are
not comfortable sending to an AI provider. Airport51 does not add analytics,
advertising trackers or third-party browser scripts to this app. Standard web
server logs can include IP address, requested path and timestamp, but prompt
text is sent in the HTTPS request body rather than the URL.

ABUSE PROTECTION
Airport51 applies short-term, per-device and global request limits. A one-way
hash derived from network and browser information is used for those limits.
The hash is temporary operational data and is not used for advertising or
profiling.

WHAT IS STORED ON YOUR DEVICE
Three values are written to your browser's localStorage:

  po_history_v1  your prompt library (raw text, timestamp and favorite state)
  po_presets_v1  your saved setting presets
  po_draft_v1    the text currently in the input box

Clearing browser data for this site, or pressing Clear in the library drawer,
deletes the relevant local data. Export downloads a JSON copy to your device;
import reads a JSON file you select. Neither action uploads the file.

If you install the app, its service worker caches only the app's own files so
the local optimizer can work offline. It does not cache API requests or prompt
responses.

SHARED TEXT
Text sent through the Android share sheet arrives as a URL parameter. The app
copies it into the input box and immediately removes it from the address bar so
it does not remain in browser history or copied links.

CONTACT
hello@airport51.ai